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Updated: May 12, 2026

Analyses of Proteinuria, Renal Infiltration of Leukocytes, and Renal Deposition of Proteins in Lupus-prone MRL/lpr Mice
Published on: June 8, 2022
Tubulointerstitial nephritis in a patient with probable autoimmune lymphoproliferative syndrome
Mia Glerup1, Troels Herlin, Søren Rittig
1Department of Pediatrics, Aarhus University Hospital, Skejby, Denmark. miagleru@rm.dk
Abstract:
Autoimmune lymphoproliferative syndrome (ALPS) is caused by a nonmalignant defective Fas-mediated apoptosis. The main clinical manifestations are chronic lymphadenopathy, splenomegaly, and autoimmune cytopenia. Most patients with ALPS have a FAS germline mutation. ALPS has occasionally been associated with glomerulonephritis and we present the first report of tubulointerstitial nephritis associated with probable ALPS. A 5-year-old girl presented with fever, vomiting, hypertension, and azotemia. No autoantibodies, viral, or streptococcal antibodies were detected. A renal biopsy showed small-vessel vasculitis with normal glomeruli and inflammation in the interstitium. The patient responded to prednisolone treatment and obtained a full renal recovery. Symptoms of connective tissue disorder supervened and after the development of more pronounced splenomegaly, a diagnosis of ALPS was confirmed.
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